Scraper



Jan. s, 1929.

@Hoz naga `Tan. 8, 1929.

W. A. PERRY El AL SCRAPER 4 Sheets-Sheet 2 Filed May l1', 1925 gwuenkozJari. s, 1929. 1,698,375

W. A. PERRY ET AL SCRAPER Filed May 1i, 1925 4 sheets-sheet 5 PatentedJan. 8, 1929.

UNITED STATES y A l 1,698,375 PATENT OFFICE.

WILLIAM A. PERRY AND GEORGIE.` D. TOY, O'FKSIDNRY, OHIO, ASSIGNORS ToYTHE` SID- NRY STEEL SCRAPER COMPANY, OF SIDNEY, OHIO, A CORPORATION OFNRW JRR- SEY.

SCRAIRR.

Application fried nay 11, 1925.',v Serial, No. 29,427.7

This invention relates to wheel Scrapers. One of theprincipal objects ofthe inventionis to provide a wheel scraper having means whereby thedepth otl cut ma be varied as desired. J

' Another Object oit the invention is to provide novel means torassisting the operator in returning the scoop 'from scraping posin` tionto the carrying or transporting position.

Still another object of this invention is to provide novel and improvedmeans for suspending and operating the scraper pan or scoop.

A further Objectof this invention is to construct a wheeled scraperwhich can ,isfactorily be operated in tandem behind a tractor or othertype of engine. f

These, with a number ol' other objects and advantages will be apparentfrom the following description of a preferred em-l bodiment of theinvention, reference being had to the accompanying drawings, in`

which:

Fig. 1 is a plan view oi a scraper constructed in accordance with theinvention; Fig. 2 is a side elevation of the scraper shown in F ig. 1,in mid position with the operating lever lowered almost to latching`position lor transporting or carrying a load ,Ot material, with certainparts omitted to more clearly illustrate the'details of construction fFig. 3 a view similar to Fig. 2, vbut showing the scoop lowered forilling or sc apingg Fig.Y l is a side elevational view ofthe per,themechanism having been actu- .'ed to cause dumping of its load;

Fig. 5 is an enlarged elevational view of the scoop and associated partsshowingl the method of siispensio1'i,one wheel being` re--r moved tomore clearly disclose Ycertain ,des tails of-construction; Fig. 6 `is adetail view of parts olf the suspension elements; the view being alongthe line -6-G of Fig. 5, and havin(T some parts broken away to moreclearly illustrate others; f 7

Fig. 7 shows the scraper' adjusted for quickflling; and `Fig. 8 is adetail of the adjustable drag hook.

As showing a preferredembodiment, this;

invention comprises an arched axle `16 shaped somewhat in the ttorm oi'an inverted IU. This axle 10 is preferably formed 'from a squaresectionot' metal, provided at each end with a rounded portion 117forming a journal tor the wheels 12.

Rigidly secured to the axle l0 -by means of a iU-bolt is a tilting lever1G, commonly ca-lled a f Johnson bar.77 f To each of the upwardlyextending sides` of axle 10 is fastened,` by means Ot' a clip 17, a-iJ-sha-ped suspension yoke .or frame 18. This yole 18 is vrigidlyfastened to the lever 16 by means oli' connecting 'str-ips or brackets19. The interconnection of tilting lever 16, yolie 18 and axle 1t) issuch, as shown particularly oit the end 20 of lever 16 will causerotation of axle 1t) within wheels 12 toswingthe yoke 18, and the archedportionof theaxle, forwardly. n 'i e Rigidly clamped upon arrangedportions of axle ay bolt 25, as clearly shown in lli 5 and G, are guideorcam members 26. vliLch guide 26 is provided with a slot at 27withinwhich' is positioned a roller V28, turning upon a pin 29. Bearingupon the roller 28and slidable in 'the slot 27 is* iitted asubstantially Z- ed suspension member' for goosenecl: 30. .This member30 is provided with an up-v "horizontally v means ot 7o vin Figs. 3 and4l, that upwari'l movement rides over .the roller 28 when th!A lscoop-is 'fed to its dumping position, as'shown in .The rear upwardly bentend oli' goosene lt member 30 is proi'fided 'with A to which is hookedone end l y o5 from which is suspended the e.- d of' main frame 411, thelatter boing` provided with suitable eye,v member 52 to 'receive thehooked lower end of the spr;j The forward depending 'end '3? ot'-goosenecl member 30l is pivotally attached by means of a bolt l0 toframe 451 forwardly of axle 11.v

The main v'fra-me il Aconsists of substantially horizontallydisposedside bars extendingforwardly andrearwardly on either lJO side ofthe scoop G2 as best shown in Fig. 1, f

which the scraper isadapted to be'connected with a tractorfor tothepreceding scraper,`

if the scrapers are-operated yin tandem. *The `rearward ends of the mainframe side bars are bent inwardly and secured in bracing eration of tliescraper.A i rA clevis 48 `is secured tothe rear of the platform 4t2 forcoupling Vwith thetongue of the` next sucy ceeding scraper.

Latch la is mounted` on the platform -42- to receive the tilting lever(ii-.Johnson bar 16and lock the same to the platform when it is 4desiredto transport a load of material. f

:[tV will beobserved from the 'above descriptionl that the load causedby pulling a number of scrapers in tandem istransmitted through therigid V'and wellV braced main frames `211. It is also seen that inmaking a turn, each scraper `is caused to follow substantially in thetrack of the one preceding,

thus permitting a number of scrapers to be operated .in tandemeyenthough .theavailable-room for maneuvering be limited.

`A scoop 62 is suspended belowv the axle 10 and between the'side bars ofthe main" frame 41, and for this purpose upwardly extending supportingarms 61 are `rigidly se-` cured to the side walls of the scoop 62, these4supporting Varms being pivotally `connected Y y 'willnow bedescribedreference being made 4firstV to Figs. 2 and 5 which illustrate thescoopf62 in "substantially itscarrying `'or at their upper ends by meansof bolts ,60

`with .the forwardly extending arms of the yoke member or` frame 18. Thelscoop `62 is also provided with side brackets 63l by which it ispivotally connected at 611 with the side bars ofthem'ain frame 41. Toeach side wall of the scoop 62 adjacent its for.- ward end is rigidlysecured a bracket 70 having a hook 71 mounted pivotally thereon,

to the forwardly eXtendinga-rm of frame 18,`

thefhook portion thereof, undersome operative positionings of theapparatus, lying in the planeV of the` catch 72 secured to andeidendingr downwardly from ,the frame 41. Thepivoted hook 71 isconnected by link 7 5:3

` the arrangement. of the parts being' such that Vwhen the tiltingmechanismv Vis operated (to drop the scoop 62 into its loading or scrap-Ving position, asV illustrated inFig. 3, the

pivoted hook 71 `is caused tov engage theV catch 72. The hook71 andcatch-72 when thus engaged serve to holdthe frontV or cut- Vting edgeofthe scoop 62 in ya definite relaby to the-tractorfthat load caused bydrag-v Vtion `with respect to the mainframe 11 and transmit directly tothe frame 41,' and thereging the scoop through the earth.v a a At therear ofthe scoop 62 is fastened-a Y keeper or latch 7 5 adapted tocooperate with a latchflever or back hook 76 pivoted at 77 upon-theybrackets 19 which areattached to frame 18.` VThe back hook 76 may beloper,-

operation. A spring`79 is connected to the secured to the rear wall ofthe scoop 62 andV extends rearwardly therefrom underneath back hook y7 6to bias the hook portionthere-A g f of towards the latch75. A retainer80 `isthe yoke member18, and the rear end of the i scoop `62 is thusprevented from lswinging upwardly Awhile the Johnson barfandthe Y si Yyoke `membei| 18 are in their ,horizontal or carrying position.

Attached to the gooseneck member 30 is a stopj;

tactwith the rear edge ofthe `guide or cam 26 and limits the forwardmovement of the `gooseneckmember 30 intheslot 27 i Suitableadjusting`slots 36'and fastening bolts 84 horizontal part of each This stop 35 isnormally Ypositioned slightly out of ,con-f are provided in the stop 35and adjacent portion of the gooseneck member 3() for adjusting theposition of the stop `315 and therefore the extent of forward movementof the gooseneck 30 with respectto the cam 26.

Attached to the frame is a'standard or support 78by means of whichtheoperator may support himself `whenupon the plat-Y.

form.` l

The operation of the present invention transporting position. It `willbe noted that lthe weight of the scoop 62 is transmitted through bracket61 to the forwardly` extending Varm of yoke member 18, and therefore)lili tends to `rotate the latter forwardly ina Theweight of't-hescoop62 and its content-s f i is thus supported from the yoke member 18through the supporting arms'61 securedito the scoop rearwardlyof theaxle 11.`

.To move the scoop 62 into its scraping"` rposition the Voperatorunlatches the'` backV hook 76 from the scoop 62, and also unlatches` ilthe latch 4,4 from the Johnson bar, moving the Jolinsonpbarto'theposition indicated in bar, it will be observed, rotates the arched axle10 forwardly and permits the Vfront-:end

However, such u iio 1152 p the scoop62 forward of the axle 11, andthe".` i A i back hook 76 which engages the rear end of i Y Fig. 3.Raising' the rear end ofthe Johnson 125 the ground, and also such anactuation of the pivoted hook 71 as will cause the latter to engage thecatch 72. The main frame, being pivoted to the scoop 62 at the point 64is thus also free to drop with the scoop 62, such dropping of the mainframe 41 being resisted only by the extensible loop consisting of thegooseneck member 3() and the s pring 53. The gooseneck member 30 is ineffect a lever which rocks about the roller 28 as a fulcrum, the leftarm of the lever extending` from the pivot 40 tothe roller 28 and theright arm of the lever extending from the roller or fulcruni 28 to thehook 33. i

As the main frame 41 falls, the point 40 of the lever rocks downwardlywhile the end 33 of the lever rocks upwardly thereby extending thespring 53. Obviously if the stop 35 is moved to the right yon thegooseneck 30, the effect is to permit the gooseneck or lever 30 to movefarther to the leftto increaseptlie length of the left arm 40w29 ofthelever while decreasing the length of the right arm 29-33 therebyextending the spring 53 still further and permitting the frame 41 andscoop 62 to drop still more. There beingl no restraint upon'the movementof the Johnson bar 16 the latter of course conforms more or less withthe dropping movement of the frame 4l and scoop 62. It will be seen fromthe foregoing that adjustment of the stop 35 to the right on theGooseneck 30 has a tendency to permit increased dropping of the frame 41and scoop 62 and therefore to causel a deeper cut of earth; and viceversa, adjustment of the stop 35 to the left tends to decrease the depthof cut of the scoop 62.

It is to be noted that when the scoop is in its scraping position thedraft or pull of the tractor is transmitted direct from the main frame41 to the scoop 62 through the catch 72 and pivoted hook 71, thusrelieving other parts of the wheel scraper from undue strain. A furtheradvantage of the present invention is that while the 'Johnson bar is inits raised position the roller 29 is substantially at its dead `centerwith respect to the axle 11.

After the scoop 62 is loaded, and lto position the device forktransporting the load, the

operator may return it to its carrying posiv tion by pulling down theJohnson bar to a position slightly beyond the position shown in Fig. 2,causing' engagement of the back hook 76 with the latch 75, andpreferably locking the Johnson bar to the frame 41 by means of the latch44. i

In returning the scoop 62'to its carryingjf position, it will be notedthat the operator is assisted by the retractile spring 53 which tends torockthe gooseneck lever30 about the roller 29 as a fulcrum therebyexerting considerable upward or lifting force on the frame 41 at thepoint 40. At.the same time thev lower end of thespring 53 is `pullingupwardlyfon the frame 41 at the point 52.

As already explained, the spring 53 is extended or placed under tensionduring the movement of thescoop 62 from the carrying position to thescraping position. The

when considerable effortis required on the part of the operator. l

Dumping of the scoop 62 is accomplished by unlatcliing'tlic Johnson barat 44, while leaving the latch 76 in position to connect the Johnson barand the rear end of the scoop, and lifting the Jolinson'bar to turn theyoke 18 and scoop 62 into the positionv illust-rated in This dumpingoperation is assisted byA the forward movementof the scraper, since uponraising theJohnsoii bar 16 the initial effect of this movement is tolowerI the front edge of the scoop 62, and when it is loweredvsufficiently to come into contact with the ground the front edge of thescoop drags, thus effectively arresting the scoop while the -other'parts of the wheeled scraper move on. j

'ln bringing the scoop 62 to its dumping position the Johnson bar 16,axle 10, scoop 62 and otherparts connected to move therewithV are ineffect rotated about the bolt/64 v as an axis, the roller 28 ridingforwardly e under the gooseneck 30. The latter, lswinging about itspivot 40 follows and remains in Acontact with the roller 29 under theinfluence of the retract-ile spring 53. `Upon still continuous motion ofthe Johnson bar the roller 28 will engage the notch formed in thegooseneck lever at 81, in which position the gooseneck lever has atendency to hold the* scoop 32 in its-extreme position as will beyapparent from Fig, 4. When it is desired to ret-urn the scoop 32 to itscarrying position, this may be readily accomplished by pulling down theJohnson bar 1 A Under certain conditions, as for example, when operatingin loose or sandy soil, lthe scraper is working in firm v soil, andvvunder such conditions it is desirable to fill or scrape iio c aower reuired to pull the scraper 'durin s. L s.

the fillingoperations less than when the '115 more quickly so as 'toreduce not only the time required for filling but also the travel ofthelscraper during the filling or scraping oper-ations. Quick filling of thescraper is herein provided for'by `the adJustablecatch or draf)` hook 72illustrated in Figs. 7 and` 8. i

Referring particularly to Fig. 8,'the frame 41 oivtiie scraper isprovided with a bracket member 101A having a slot 102` in 'one lsidewall thereof to receive the drag Vhook 72,

the slot being of such dimensions as to pei'- Init the draghook to beslid "longitudinally in the slot. v*The upper end oftheldrag hookscraper."

f or lengthening ofthe drag liook`72 will per-` 72 is inclined at a`slightangle to the main Vportionrof the drag hook and is provided witha plurality; of bolt4 holes 108, 104 and 105 by which the upper end ofthe drag link may be rigidly Vbolted to the frame 41.

Tomore quickly lill the scraper, the for` ward or cutting edge of thescraper should' be loweredto some such position as illustrated in dottedlines in Fig. 7,' This results init the forwardend of the scoop 62 torock downwardly from the full;line position indicatedinv Fig. 'p7 tolthe dotted line position. The lfoiifward orcutting `edge of the scoop isthusdi'opped fromthe position indicated at 10G-"toftliat` indicated at107 thereby securing a deeper eut and hence a quicker lill of the scoop.of the forward portion of the scoop carries with Vit the mud hook 71 tosuch an extent that, were the drag hook 72 merely lengthn ened along itsoriginal axis, themud hook would slip out of engagement with `the'heoked portionof the drag hook, thus resulting in disarrangement andpossible damage-oit the parts of the scraper.

The present invention guards against this contingency by `reasons ofythe peculiar con- A struction and mounting of the drag hook.

As illustrated in Fig. 8,`when the drag hookV is lengthened as bybolting` itto the frame through the bolt holes 104 or 103, tlie rearwardend of the drag hook is dropped down- Ywardly as well as simplylengthened. The

drag hoolrhas a swinging movement in the slot 102, that is, it swingsdownwardly about i this slot as a center as it is moved backward.-

ly. To accommodate such relative swinging movement of the drag hook inthe slot 102 the` walls of the latter are curved as indicatf -edat 10Sand 109` respectively. When the L drag hook has been adjusted inthedesired position itV may be lsecurely fastened in the bracket `101 Vbythe fastening means indicated at 110, which may consist of a washer anda bolt forgholdingV the drag hookin position in the slot. i g While theformof apparatus hereindef scribed constitutes a preferred embodiment ofthe invention, it is toy be understood that Athe invention isnotliinited to this precise i form of apparatus, and that changesrmay be60 vmadethei'ein withoutdeparting from the scopeof the invention whichis defined in the appended-claims.

That is claimed is: p 1. In'a scraper, the combination of `a car-Vriage, aframe, af scoop adapted to befmoved But such downward movementinto scraping or into carrying position,`

means for moving thescoop from one saidposition to the other, andadjustable means Jr'or varying thefdeptli of cuto'f said scoop when inits scraping position, said means including a lever member havingpivoted Vconnection at" one end with the` iframeV and adapted to rock`about a iulerum on said carriage, yielding means for resisting rockvingmovemeiitfof said lever in one' direction,

and means forvaryingv the position of said iulcrum with 'respect tothelevei. v Y

2.3Iii af scraper, theicombination oacar-A riage, `a scoopjadapteffl to`be moved into i scraping or into carryingposition, lifting leverineans'ffin moving the scoopifroin one said position to ranged to store'potential energy upon inovement of the scoopfroni carrying tow rdscraping position andto release energy to assist movement ofthe scoopfrom scraping towards vcarrying i position, said means. comthe other,Aand means ais,

prising a yielding loop connected to exert n its operative effectbetweenjthe carriage and thescoop and vincluding a rigid lever meinberhaving engagement intermediateitsends withsaid carriage. 5 i

3. `In afscraper, thecoinbinationof a cai'- riage having an axle,airame, `a scoopsuspended in the 1frame, i and yielding loop means tor`supporting the frame from the 1 carriage, said loop means including ariu member in engagement with `.said `carriage and connected to saidframe.

4L. In aV scraper, the combination of a car- -riage having an aXle,a`trame, a scoop sus-y pended iniithe vframe, and "yieldingloop meansfor, supporting thefframefrom the carriage, said loop means comprising alever member pivotally connected at-oiie end with Vthe frameandcooperating intermediateits .ends witligthe axle'of Vsaid `Carriage,and, fyieldingnieansior connecting the other end A of saidleverwiththeframe. Y

5.- In scraper, the combination of a car`v riage having an axle,airtime, a scoop sus-A pended in thefraine, and yielding loopmeans-foisuppoiting the `frame from the carriage, said loop meanslcomprising a lever rmember pivotally connected at `oneend with the frameand cooperating 'intermediate its@ iis ends with the aXleo saidcarriage, yielding Y ing means for connecting the Vother end of said 1lever with the frame, means for rocking said.` f axle, andeccentricVmeans carried by saidV axle for increasing/the 4tension of said yield-Vmeans upon rockingof the axle in one direction; c

6; In a scraper,'thecombination of a car# riage having an axle, a frame,a scoop sus` pended `in the frame,`and yielding, loop means forsupporting the frame from themember pivotally connected yat one end.with

the V`iframe andv cooperating intermediate, its

' carriage,said loop means comprising a-lever .i

ends with the axle of said carriage, yielding means for connecting theother end of said lever withthe frame, means for rocking said axle, saidrocking means being connected with the scoop and adapted upon rockingmovement in one direction to lower the scoop and upon movement in theother direction to raise the scoop, and means cai'-v ried by said axleand engaging the lever member for increasing the tension of saidyielding' means uponrocking movement in the direction to lower thescoop.

7. In a scraper comprising a draft meniber, a scoop swingingly mountedin said draft member and a4 scoop hook member carried by the scoop, aframe hook member carried by the draft member and adapted to cooperatewith said first mentioned hook member to limit the downward swingingmovement of the scoop, means for adjustably but rigidly securing saidframe hook member to the draft means to vary the effective length of theframe hook member, said securing means being so constructed and airangedas to cause dropping of the rearward portion of the frame hook membercoincident with the lengthening thereof.

8. In a scraper comprising a draft member, a scoop swingingly mounted insaid draft member and a scoop hook member carried by the scoop, a framehook member carried by the draft member and adapted tocooperate withsaid first mentioned hook member to limit the downward swinging movementof the scoop, and havingfa laterally inclined upper end portion, abracket carried by the draft member having a groove therein throughwhich the frame hook member is adapted to slide, and means for rigidlysecuring said inclined portion of the fi'ame hook member to said draftmeans in a plurality of positions.

9. In a scraper comprising a draft member, a scoop swingingly mounted insaid draft member and a scoop hook vmember carried by the scoop, a framehook member carried by the draft member and adapted to cooperate withsaid n, first mentioned hook member to limit ythe downward swingingmovement of the scoop, and having a laterally inclined upper endportion, a bracket carried by the draft member having a 'groove thereinthrough which the framey hook member is adapted to slide, and saidgroove having curved walls to permit a rocking movement of said draftmember therein, and means for rigidly securing said inclined portion ofthe frame hoolrmember plurality y of posimember, said rigid member beingslidably f fulcrumed on said roller. l

11. In a scraper, the combination of a carriage having an axle,y aframe, a scoop suspended in the frame, and means for suspending theframe from said carriage, said nieans'comprising a rigid member having asubstantially horizontal portion fulcrumed and supported on saidcarriage, aVK downwardly depending portion on one side of said fulcrumpivotally connected to Vsaid frame, and an upwardl extending portion onthe opposite side o said fulcrum, and yielding means connecting said.upwardly extending portion with said frame.

12.,In a scraper, 'the combination of a carriage having an axle, a yokeframe 'co`nnected to said axle, a draft frame suspended fromsaidcarriage, a scoop, a member rigidly connected to said scoop andpivotally connected to said yoke frame, and aY second fmember rigidlyconnected to said scoop at the rear of said first-mentioned member andpivotally connected to said draft frame,`said members being unconnectedwith each other.

In testimony whereof we hereto aiix our signatures.

IVILLIAM A. PERRY. kGEORGE D. TOY.

